Hello! So you have an idea that's sort of basic and straight to the point. This isn't entirely unworkable, but I still have a few gripes. Let's break it down.
The Anomaly:
So it's a sentient stop sign that interacts with cars and bikes, and seems to have something special against drivers of 2005 Red Toyota Corollas. While this doesn't personally interest me, I think that you could find an audience for this. However I'm slightly worried that the anomaly is a bit basic, and everything presented here feels a bit straight to the point.
A stop sign that interacts with drivers, that's kind of what you would expect a stop sign to do. It can be difficult finding anomalies that work, and I get that. My main fear with this is that it just doesn't stand out very much. Though I will give you that having it act a specific way towards a specific type of car could possibly help create intrigue. It doesn't for me, but I'll explain that later.
Overall I think this anomaly could work, but I would maybe try to find a way to make it less basic. For more information on developing ideas, check out this guide and this guide.
The Narrative:
So you do have a clear thought out narrative, and that's awesome. But there are a few specific details I have issues with. A lot of the narrative points in the test logs feel like filler. I basically get the whole story form this "Addendum: Inscription on tombstone reads: “Here lies Thomas Greggs and Wilma Greggs, loving parents to William Greggs.” Heavily implies that stop sign is possessed by one of these individuals." and this "Extremely violent towards drivers of 2005 Red Toyota Corollas, regardless of driving.". The stop sign is possessed by someone who got killed in a car accident with a 2005 red Toyota Corollas".
That's not a bad story, it has potential to be emotional, but as you have it right now, every detail feels flat and emotionless. This is the story of someone who was killed in a car accident, I understand there would be a whole big mix of emotions there. I think you could get somewhere with this, but you need to try to focus more on telling the story and getting the emotions across.
This individual is clearly upset, sad, angry, depressed, and everything in between. But I can't tell that right now. I suggest trying to shape the testing logs to show more emotion. You have a good layout and I think it could work, you just need to bring out the emotions. How do you want your audience to feel? What details do you need to make them feel that way? Make sure the whole story isn't given away in two lines.
As it stands, I knew how it was going to end the minute I started because the story is sort of generic. Try to lay out a story in way that the whole story unfolds with every detail, not all at once. Maybe put a twist that swerves away from the generic 'road safety' theme. Spice it up a bit.
